Is the Amazon Brand Registry worth it even if you don’t sell directly on Amazon?

We don’t sell directly on Amazon. Some companies sell our products on Amazon (they might get their products either from us or from our distributors) and we never really thought much about it as at the end of the day they’re still selling our products and our main focus is B2B and big distributors.

I recently came across Amazon Brand Registry and I’m doing some research in it (there’s ton of websites regurgitating the same thing and Amazon support is not available unless you’re already a seller) .

Is it worth it for us, even though we might not directly sell on Amazon? If we do register, what would be the repercussions on those who are selling our products on Amazon?